private static CourseInfo ExtractCourseInfo(HtmlNodeCollection children)
{
// Make sure to strip away all whitespaces (trim everything)
CourseInfo courseInfo = new CourseInfo();
courseInfo.CourseName = children[0].InnerText.Trim();
courseInfo.Teacher = children[1].InnerText.Trim();
courseInfo.IsElective = children[2].InnerText.Trim() != "Задължителни";
// The text in Grade and IsTaken is put inside a span unlike all the other cells, so find the first span child
courseInfo.IsTaken = children[3].SelectSingleNode("span").InnerText.Trim() == "да";
// If the grade is empty, set it to 0 (exam may have not yet passed)
string gradeAsText = children[4].SelectSingleNode("span").InnerText.Trim();
if (gradeAsText.Length != 0)
{
courseInfo.Grade = Double.Parse(gradeAsText.Substring(0, 1));
}
else
{
courseInfo.Grade = 0;
}
courseInfo.Credits = Double.Parse(children[5].InnerText.Trim());
return(courseInfo);
}
/// <summary>
/// Gets a collection of <see cref="CourseInfo"/> that shows all courses that the student has passed successfully.
/// </summary>
public IEnumerable <CourseInfo> GetCourses()
{
if (this.Cookies.Count == 0)
{
throw new InvalidOperationException("You must login prior to getting info from SUSI");
}
try
{
// Get the exam page and parse it
string examPage = this.GetExamPage();
HtmlDocument document = new HtmlDocument();
document.LoadHtml(examPage);
// Use a magical xpath to get all rows of the courses table, there may be header rows though
string xpath = @"/html/body/form/table/tr/td/table[@width=""100%""]/tr/td/table/tr[not(@class)]";
var nodes = document.DocumentNode.SelectNodes(xpath);
// Set the culture to BG, else parsing doubles will fail
CultureInfo culture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("bg-BG");
List <CourseInfo> courseInfos = new List <CourseInfo>();
foreach (HtmlNode node in nodes)
{
// Each tr has 6 tds inside in the following order:
// Subject Teacher Type(elective or not) Taken Grade Credits
HtmlNodeCollection children = node.SelectNodes("td");
// If the first cell contains the following magic word, the row is a header, ignore it
if (children[0].InnerText.Contains("Предмет"))
{
continue;
}
// Make sure to strip away all whitespaces (trim everything)
CourseInfo courseInfo = new CourseInfo();
courseInfo.CourseName = children[0].InnerText.Trim();
courseInfo.Teacher = children[1].InnerText.Trim();
courseInfo.IsElective = children[2].InnerText.Trim() != "Задължителни";
// The text in Grade and IsTaken is put inside a span unlike all the other cells, so find the first span child
courseInfo.IsTaken = children[3].SelectSingleNode("span").InnerText.Trim() == "да";
courseInfo.Grade = Double.Parse(children[4].SelectSingleNode("span").InnerText.Trim().Substring(0, 1));
courseInfo.Credits = Double.Parse(children[5].InnerText.Trim());
courseInfos.Add(courseInfo);
}
// Set the culture back to whatever it was
Thread.CurrentThread.CurrentCulture = culture;
return(courseInfos);
}
catch (Exception e)
{
// In case something failed, throw a new exception
throw new WebException("Can't load data from SUSI", e);
}
}
/// <summary>
/// Gets a collection of <see cref="CourseInfo"/> that shows all courses that the student has passed successfully.
/// </summary>
public IEnumerable <CourseInfo> GetCourses(CoursesTakenType coursesType)
{
if (this.Cookies.Count == 0)
{
throw new InvalidOperationException("You must login prior to getting info from SUSI");
}
#if !DEBUG
try
{
#endif
// Get the exam page and parse it
string examPage = this.GetExamPage(coursesType);
HtmlDocument document = new HtmlDocument();
document.LoadHtml(examPage);
// Use a magical xpath to get all rows of the courses table, there may be header rows though
string xpath = @"/html/body/form/table/tr/td/table[@width=""100%""]/tr/td/table/tr[not(@class)]";
var nodes = document.DocumentNode.SelectNodes(xpath);
// Set the culture to BG, else parsing doubles will fail
CultureInfo culture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("bg-BG");
List <CourseInfo> courseInfos = new List <CourseInfo>();
foreach (HtmlNode node in nodes)
{
// Each tr has 6 tds inside in the following order:
// Subject Teacher Type(elective or not) Taken Grade Credits
HtmlNodeCollection children = node.SelectNodes("td");
// If the first cell contains the following magic word, the row is a header, ignore it
if (children[0].InnerText.Contains("Предмет"))
{
continue;
}
CourseInfo courseInfo = ExtractCourseInfo(children);
courseInfos.Add(courseInfo);
}
// Set the culture back to whatever it was
Thread.CurrentThread.CurrentCulture = culture;
return(courseInfos);
#if !DEBUG
}
catch (Exception e)
{
// In case something failed, throw a new exception
throw new WebException("Can't load data from SUSI", e);
}
#endif
}
private static CourseInfo ExtractCourseInfo(HtmlNodeCollection children)
{
// Make sure to strip away all whitespaces (trim everything)
CourseInfo courseInfo = new CourseInfo();
courseInfo.CourseName = children[0].InnerText.Trim();
courseInfo.Teacher = children[1].InnerText.Trim();
courseInfo.IsElective = children[2].InnerText.Trim() != "Задължителни";
// The text in Grade and IsTaken is put inside a span unlike all the other cells, so find the first span child
courseInfo.IsTaken = children[3].SelectSingleNode("span").InnerText.Trim() == "да";
// If the grade is empty, set it to 0 (exam may have not yet passed)
string gradeAsText = children[4].SelectSingleNode("span").InnerText.Trim();
if (gradeAsText.Length != 0)
{
courseInfo.Grade = Double.Parse(gradeAsText.Substring(0, 1));
}
else
{
courseInfo.Grade = 0;
}
courseInfo.Credits = Double.Parse(children[5].InnerText.Trim());
return courseInfo;
}
/// <summary>
/// Gets a collection of <see cref="CourseInfo"/> that shows all courses that the student has passed successfully.
/// </summary>
public IEnumerable<CourseInfo> GetCourses()
{
if (this.Cookies.Count == 0)
{
throw new InvalidOperationException("You must login prior to getting info from SUSI");
}
try
{
// Get the exam page and parse it
string examPage = this.GetExamPage();
HtmlDocument document = new HtmlDocument();
document.LoadHtml(examPage);
// Use a magical xpath to get all rows of the courses table, there may be header rows though
string xpath = @"/html/body/form/table/tr/td/table[@width=""100%""]/tr/td/table/tr[not(@class)]";
var nodes = document.DocumentNode.SelectNodes(xpath);
// Set the culture to BG, else parsing doubles will fail
CultureInfo culture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture("bg-BG");
List<CourseInfo> courseInfos = new List<CourseInfo>();
foreach (HtmlNode node in nodes)
{
// Each tr has 6 tds inside in the following order:
// Subject Teacher Type(elective or not) Taken Grade Credits
HtmlNodeCollection children = node.SelectNodes("td");
// If the first cell contains the following magic word, the row is a header, ignore it
if (children[0].InnerText.Contains("Предмет"))
continue;
// Make sure to strip away all whitespaces (trim everything)
CourseInfo courseInfo = new CourseInfo();
courseInfo.CourseName = children[0].InnerText.Trim();
courseInfo.Teacher = children[1].InnerText.Trim();
courseInfo.IsElective = children[2].InnerText.Trim() != "Задължителни";
// The text in Grade and IsTaken is put inside a span unlike all the other cells, so find the first span child
courseInfo.IsTaken = children[3].SelectSingleNode("span").InnerText.Trim() == "да";
courseInfo.Grade = Double.Parse(children[4].SelectSingleNode("span").InnerText.Trim().Substring(0, 1));
courseInfo.Credits = Double.Parse(children[5].InnerText.Trim());
courseInfos.Add(courseInfo);
}
// Set the culture back to whatever it was
Thread.CurrentThread.CurrentCulture = culture;
return courseInfos;
}
catch (Exception e)
{
// In case something failed, throw a new exception
throw new WebException("Can't load data from SUSI", e);
}
}
